{"id":2885,"date":"2024-03-24T18:01:44","date_gmt":"2024-03-24T17:01:44","guid":{"rendered":"https:\/\/www.rumexperts.vet\/?post_type=training&#038;p=2885"},"modified":"2024-03-24T18:01:44","modified_gmt":"2024-03-24T17:01:44","slug":"quelle-echographie-pour-diagnostiquer-un-corps-jaune-b-mode-ou-echo-doppler","status":"publish","type":"training","link":"https:\/\/www.rumexperts.vet\/en\/training\/quelle-echographie-pour-diagnostiquer-un-corps-jaune-b-mode-ou-echo-doppler","title":{"rendered":"Quelle \u00e9chographie pour diagnostiquer un corps jaune : B-mode ou \u00e9cho-doppler ?"},"content":{"rendered":"<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1248px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-1\"><p>R\u00e9f\u00e9rence : Turner et al. Cystic ovarian disease in dairy cattle: Diagnostic accuracy when using B-mode and color Doppler ultrasound. J. Dairy Sci.2023, 106:3411\u20133420. <a href=\"https:\/\/doi.org\/10.3168\/jds.2022-22498\">https:\/\/doi.org\/10.3168\/jds.2022-22498<\/a><\/p>\n<p>La d\u00e9finition acad\u00e9mique d\u2019un kyste ovarien est connue\u00a0: il s\u2019agit d\u2019une structure dont le diam\u00e8tre est sup\u00e9rieur \u00e0 20 voire 25 mm et qui persiste durant 6 \u00e0 10 jours en l\u2019absence de corps jaune. Pour ma part ce diagnostic est pos\u00e9 le plus souvent sur base d\u2019un seul examen. \u00a0Le diagnostic diff\u00e9rentiel entre un kyste folliculaire (KF) et un kyste folliculaire lut\u00e9inis\u00e9 (KFL) implique la mesure \u00e9chographique de la paroi du kyste\u00a0: &lt; 3 mm dans le cas du kyste folliculaire et \u2265 3 mm dans le cas du kyste folliculaire lut\u00e9inis\u00e9. Cependant la pr\u00e9sence d\u2019une paroi plus \u00e9paisse ne signifie pas n\u00e9cessairement une synth\u00e8se accrue de progest\u00e9rone (&gt; 1 ng\/ml). Le dosage de la progest\u00e9rone demeure le gold standard du diagnostic diff\u00e9rentiel (\u2265 1 ng\/ml). A la diff\u00e9rence d\u2019un corps jaune cavitaire, le KFL a une cavit\u00e9 dont le diam\u00e8tre est &gt; \u00e0 20 mm. Le diagnostic diff\u00e9rentiel entre les deux types de kystes peut rev\u00eatir un certain int\u00e9r\u00eat pour le choix d\u2019un traitement, GnRH dans le cas du KF et PGF2\u03b1 dans le cas du KFL. En l\u2019absence de diagnostic diff\u00e9rentiel, on peut n\u00e9anmoins envisager d\u2019injecter une GnRH suivie 7 \u00e0 10 jours plus tard d\u2019une PGF2\u03b1 voire de traiter l\u2019un ou l\u2019autre kyste au moyen d\u2019un dispositif intravaginal de progest\u00e9rone.<\/p>\n<p>L\u2019\u00e9tude concerne 36 cas de kystes identifi\u00e9s \u00e0 10 jours d\u2019intervalle sur bas de la pr\u00e9sence d\u2019une structure de plus de 20 mm en l\u2019absence de corps jaune. On notera au passage que 60 kystes sur 96 identifi\u00e9s lors du 1<sup>er<\/sup> examen ne l\u2019ont plus \u00e9t\u00e9 lors du second. La r\u00e9gression spontan\u00e9e est une r\u00e9alit\u00e9\u2026<\/p>\n<p>Par comparaison \u00e0 la concentration de progest\u00e9rone (\u2265 1 ng\/ml), la mesure de l\u2019\u00e9paisseur de tissu lut\u00e9al (3 mm) par B-Mode et celle de la surface du flux sanguin (0.19 cm2) par \u00e9cho-Doppler pour diagnostiquer un KFL ont une sensibilit\u00e9 de 0.5 et de 0.78 et une sp\u00e9cificit\u00e9 de 0.86 et de 0.86.<\/p>\n<p>Le diagnostic par \u00e9cho-Doppler pr\u00e9senterait donc un avantage, encore faut-il \u00eatre capable de l\u2019utiliser en pratique.<\/p>\n<\/div><div class=\"fusion-image-element \" style=\"--awb-caption-title-font-family:var(--h2_typography-font-family);--awb-caption-title-font-weight:var(--h2_typography-font-weight);--awb-caption-title-font-style:var(--h2_typography-font-style);--awb-caption-title-size:var(--h2_typography-font-size);--awb-caption-title-transform:var(--h2_typography-text-transform);--awb-caption-title-line-height:var(--h2_typography-line-height);--awb-caption-title-letter-spacing:var(--h2_typography-letter-spacing);\"><span class=\" fusion-imageframe imageframe-none imageframe-1 hover-type-none\"><img decoding=\"async\" width=\"1900\" height=\"1062\" title=\"Turner 2023 bmode echodoppler kystes\" src=\"https:\/\/www.rumexperts.vet\/wp-content\/uploads\/2024\/03\/Turner-2023-bmode-echodoppler-kystes-scaled.jpg\" data-orig-src=\"https:\/\/www.rumexperts.vet\/wp-content\/uploads\/2024\/03\/Turner-2023-bmode-echodoppler-kystes-scaled.jpg\" alt class=\"lazyload img-responsive wp-image-2887\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%271900%27%20height%3D%271062%27%20viewBox%3D%270%200%201900%201062%27%3E%3Crect%20width%3D%271900%27%20height%3D%271062%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/www.rumexperts.vet\/wp-content\/uploads\/2024\/03\/Turner-2023-bmode-echodoppler-kystes-200x112.jpg 200w, https:\/\/www.rumexperts.vet\/wp-content\/uploads\/2024\/03\/Turner-2023-bmode-echodoppler-kystes-400x224.jpg 400w, https:\/\/www.rumexperts.vet\/wp-content\/uploads\/2024\/03\/Turner-2023-bmode-echodoppler-kystes-600x335.jpg 600w, https:\/\/www.rumexperts.vet\/wp-content\/uploads\/2024\/03\/Turner-2023-bmode-echodoppler-kystes-800x447.jpg 800w, https:\/\/www.rumexperts.vet\/wp-content\/uploads\/2024\/03\/Turner-2023-bmode-echodoppler-kystes-1200x671.jpg 1200w, https:\/\/www.rumexperts.vet\/wp-content\/uploads\/2024\/03\/Turner-2023-bmode-echodoppler-kystes-scaled.jpg 1900w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 640px) 100vw, 1200px\" \/><\/span><\/div><\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":20,"featured_media":2886,"template":"","keyword":[],"theme":[59],"class_list":["post-2885","training","type-training","status-publish","has-post-thumbnail","hentry","theme-reproduction-en"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.rumexperts.vet\/en\/wp-json\/wp\/v2\/training\/2885","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.rumexperts.vet\/en\/wp-json\/wp\/v2\/training"}],"about":[{"href":"https:\/\/www.rumexperts.vet\/en\/wp-json\/wp\/v2\/types\/training"}],"author":[{"embeddable":true,"href":"https:\/\/www.rumexperts.vet\/en\/wp-json\/wp\/v2\/users\/20"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.rumexperts.vet\/en\/wp-json\/wp\/v2\/media\/2886"}],"wp:attachment":[{"href":"https:\/\/www.rumexperts.vet\/en\/wp-json\/wp\/v2\/media?parent=2885"}],"wp:term":[{"taxonomy":"keyword","embeddable":true,"href":"https:\/\/www.rumexperts.vet\/en\/wp-json\/wp\/v2\/keyword?post=2885"},{"taxonomy":"theme","embeddable":true,"href":"https:\/\/www.rumexperts.vet\/en\/wp-json\/wp\/v2\/theme?post=2885"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}